#include <iostream>
using namespace std;
typedef unsigned int UINT;
#define  f(x) x*x
void func1();
void func2();

int main(){
    int a=6,b=2,c;
    c = f(a) / f(b);
    cout << c << endl;

    cout << "-----" << endl;
 
    // UINT value = "abc";
    // cout << value << endl;

    func2();
    return 0;
}

void func1(){
    #define HW "Hello world"
}

void func2(){
    string str = HW;
    cout << str << endl;
}